lesson
Mental Subtraction Strategies Within 20
Use mental strategies to subtract within 20
Updated 1 month ago · 4 views
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This lesson is part of a track
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Addition and Subtraction Fluency Within 20
7 lessons
Goal
Develop automatic recall of addition and subtraction facts within 20 and use mental strategies and fact families to build fluency.
7 lessons
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- Recalling Addition Facts Within 20Up next
- Recalling Subtraction Facts Within 20Not started yet
- Using Addition Facts to Solve SubtractionNot started yet
- Using a Number Line to Subtract Within 20Not started yet
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Learning standards covered
111.4(b)(4)(A)Texas Essential Knowledge and Skills (TEKS) · Math · 2nd Graderecall basic facts to add and subtract within 20 with automaticity;
Open Global Standard:OGM.3.OA.1
111.4(b)(1)(C)Texas Essential Knowledge and Skills (TEKS) · Math · 2nd Gradeselect tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems;
Open Global Standard:OGM.3.NBT.5OGM.3.MP.1
OGM.3.OA.1OGM.3.NBT.5OGM.3.MP.1